Code P1130, P1128 and P0134

[78F350]

I had ABS and PSM lights after about 15 to 30 minutes of driving and the cause was a faulty switch on the brake pedal. Does your Cruise Control work? Mine didn't until I replaced that switch.
Here's the replacement guide: https://www.pelicanparts.com/techarticles/Boxster_Tech/93-ELEC-Pedal_Switches/93-ELEC-Pedal_Switches.htm

For the other issue, I'm guessing MAF sensor is bad. If it hasn't ever been replaced, a new one wouldn't be a bad idea anyway. Go with a genuine Bosch, do not try a generic bargain.

[Laredo]

thanks 78f350

If the ABS light is on the scanner could read a code or something?

A faulty switch in the brake pedal goes with a stop brake light malfunction?

[78F350]

Originally Posted by Laredo

thanks 78f350

If the ABS light is on the scanner could read a code or something?

A faulty switch in the brake pedal goes with a stop brake light malfunction?

In my case it took months for me to figure it out because the brake light still worked. A scanner would have to be capable of reading the ABS module to get a code. Many of the inexpensive ones only read the engine module.

In addition to what Blue62 said about simple tests with a multimeter for the P0134, you can also try swapping the O2 sensors from one side to the other and see if the problem moves.

Are you familiar with the reference of 'bank 1, sensor 1'? That's the most forward O2 sensor on the right side.

[blue62]

Originally Posted by 78F350

In my case it took months for me to figure it out because the brake light still worked. A scanner would have to be capable of reading the ABS module to get a code. Many of the inexpensive ones only read the engine module.

In addition to what Blue62 said about simple tests with a multimeter for the P0134, you can also try swapping the O2 sensors from one side to the other and see if the problem moves.

Are you familiar with the reference of 'bank 1, sensor 1'? That's the most forward O2 sensor on the right side.

I agree that you could test the O2 sensor by swapping it from one side to the other.
But that is a lot of work compared to testing it and associated wiring with a multimeter which only takes a few minutes. And no wrenching involved

[78F350]

Originally Posted by blue62

I agree that you could test the O2 sensor by swapping it from one side to the other.
But that is a lot of work compared to testing it and associated wiring with a multimeter which only takes a few minutes. And no wrenching involved

Assuming that Laredo has a multimeter and is familiar with the pin-out, yes. Even swapping the sensor requires possessing a proper wrench and that may not be the case, but is easier to figure out if unfamiliar.

[Laredo]

Thank you very much for all your help!!

I am looking for MAF sensor and they ask me if my car has a M620 e-accelerator or not?
How can I determine it?

I appreciated all the assistance

[blue62]

Originally Posted by Laredo

Thank you very much for all your help!!

I am looking for MAF sensor and they ask me if my car has a M620 e-accelerator or not?
How can I determine it?

I appreciated all the assistance

All boxsters from 2000 forward have the M620 e-accelerator.
Have you tested the MAF sensor to see if it is faulty?